SmallMeanPoissonSampler

Sampler for the Poisson distribution.

• For small means, a Poisson process is simulated using uniform deviates, as described in Knuth (1969). Seminumerical Algorithms. The Art of Computer Programming, Volume 2. Chapter 3.4.1.F.3 Important integer-valued distributions: The Poisson distribution. Addison Wesley.

• The Poisson process (and hence, the returned value) is bounded by 1000 * mean. This sampler is suitable for mean < 40. For large means, LargeMeanPoissonSampler should be used instead.

Based on Commons RNG implementation.

See https://commons.apache.org/proper/commons-rng/commons-rng-sampling/apidocs/org/apache/commons/rng/sampling/distribution/SmallMeanPoissonSampler.html.